org.checkerframework.dataflow.cfg.node.SignedRightShiftNode Maven / Gradle / Ivy
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The Checker Framework enhances Java's type system to
make it more powerful and useful. This lets software developers
detect and prevent errors in their Java programs.
The Checker Framework includes compiler plug-ins ("checkers")
that find bugs or verify their absence. It also permits you to
write your own compiler plug-ins.
package org.checkerframework.dataflow.cfg.node;
import com.sun.source.tree.BinaryTree;
import com.sun.source.tree.Tree;
import java.util.Objects;
import org.checkerframework.checker.nullness.qual.Nullable;
/**
* A node for bitwise right shift operations with sign extension:
*
*
* expression >> expression
*
*/
public class SignedRightShiftNode extends BinaryOperationNode {
/**
* Constructs a {@link SignedRightShiftNode}.
*
* @param tree the binary tree
* @param left the left operand
* @param right the right operand
*/
public SignedRightShiftNode(BinaryTree tree, Node left, Node right) {
super(tree, left, right);
assert tree.getKind() == Tree.Kind.RIGHT_SHIFT;
}
@Override
public R accept(NodeVisitor visitor, P p) {
return visitor.visitSignedRightShift(this, p);
}
@Override
public String toString() {
return "(" + getLeftOperand() + " >> " + getRightOperand() + ")";
}
@Override
public boolean equals(@Nullable Object obj) {
if (!(obj instanceof SignedRightShiftNode)) {
return false;
}
SignedRightShiftNode other = (SignedRightShiftNode) obj;
return getLeftOperand().equals(other.getLeftOperand())
&& getRightOperand().equals(other.getRightOperand());
}
@Override
public int hashCode() {
return Objects.hash(getLeftOperand(), getRightOperand());
}
}